Setting up Readers for Shared Locks

Topics included in this article:

• DC20 Wiring Options
  • Wiring Guide for Readers using Different Access Grants
  • Wiring Guide for Readers using the Same Access Grants
  • Use Cases
    
    • Entry and Exit Readers
    • Double Doors
• Rhombus Console Setup
• Helpful Links
• Contact Support or Sales

DC20 Wiring Options

Wiring Guide for Readers using Different Access Grants

If you intend to use different access grants for readers connected to the same door, each reader will need to be associated with a separate relay port, which then gets wired back into the shared locking hardware. 

Relays cannot be shared with the same virtual door, so two virtual doors will need to be created in the Rhombus console, with the Access Grants assigned to each virtual door as needed. 

Note: This setup requires an external power supply, such as an Altronix box.

Figure 1.) Wiring and configuration when using the same locking hardware and two readers for the same door, where the readers are using different access control grants for credentials.

Wiring Guide for Readers using the Same Access Grants

The configuration for ingress/egress badge readers that are using the same access credential grants can be configured in the console under the same virtual door. This configuration requires the use of only one relay for the locking hardware. 

Figure 2.) Wiring and configuration when using the same locking hardware but two different readers with the same access credentials for a door.

Figure 3.) Console setup for configuring multiple readers, one relay with the same virtual door.

Use Cases

Entry and Exit Readers

For use cases where separate access grants and permissions need to be used for the entry badge reader versus the exit badge reader, refer to the Wiring Guide for Readers using Different Access Grants section.

The wiring from the relays needs to be fed into an Altronix box or something similar, where the single output can be run to the locking hardware. The events will be logged separately in the access control events logs. 

Double Doors

Double doors can use either a single locking mechanism or two, depending on the setup.

For double doors, you have two choices for maglocks:

1. Two separate locks joined together, each with its own independent wiring.
2. One lock with a single set of wiring.

If you choose to use only one lock, refer to the wiring instructions in the Wiring Guide for Readers using the Same Access Grants.

Rhombus Console Setup

When sharing a lock, you can configure multiple readers for the same door to represent your DC20 wiring accordingly in the Rhombus Console. 

1. Navigate to "Settings," select "Door Controllers," and click on the DC20 to which you will be configuring the readers. 

2. Edit an existing door or create a new one. For more information, see the Controller Settings and Access Control Door Configuration article. 

3. When configuring the reader ports, select both readers that will be used for this door. 

4. Once the virtual door is completed with both readers associated, click "Finish."

Helpful Links

• Controller Settings and Access Control Door Configuration
• Installing/Registering the DC20
• DC20 Overview
• Installing Electric Strikes with the DC20
• Installing Magnetic Locks with the DC20
• Controller Settings and Access Control Door Configuration
• Door Access Conditions (Grants)

Contact Support or Sales

Have more questions? Contact Rhombus Support at +1 (877) 746-6797 option 2 or support@rhombus.com.

Interested in learning more? Contact Rhombus Sales at +1 (877) 746-6797 option 1 or sales@rhombus.com.